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Vol.51, No.7, 547 ~ 557, 2013
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| Title |
| Effect of Thermo-Mechanical Treatment on the Interface Microstructure and Mechanical Properties of a STS-Al-Mg 3-ply Plate |
| 김정수 Jung Su Kim , 이광석 Kwang Seok Lee , 권용남 Yong Nam Kwon , 이영선 Young Seon Lee , 이성학 Sung Hak Lee , 장영원 Young Won Chang |
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| Abstract |
| In this research, a series of secondary warm rolling was performed under various process conditions in order to evaluate the influence of thermo-mechanical treatment on the interface microstructure and subsequent mechanical properties of roll-bonded STS/Al/Mg 3-ply laminates. The variation of interfacial microstructure was observed by scanning and transmission electron microscopes equipped with energy dispersive X-ray detector. Uniaxial tensile, hardness and drum peel tests were then carried out to clarify major mechanical properties of STS/Al/Mg clad sheets. We revealed that annealing for 60 min followed by secondary warm rolling at 300℃ under the reduction ratio of 20% could effectively improve the bonding strength at the Al/Mg joint and the tensile properties of roll-bonded STS/Al/Mg 3-ply laminates. |
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| Key Words |
| composites, thermomechanical processing, interfaces, tensile test, mechanical properties |
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